PHP获取URL跳转后的链接

$url=
https://s.click.taobao.com/t?e=m%3D2%26s%3DNUvtFDcIwOocQipKwQzePOeEDrYVVa64LKpWJ%2Bin0XJRAdhuF14FMR8WZHEPpGYi8sviUM61dt3fihkA92r7Zcnjyd38oaEmgUaFy6v5pIPjBFxotqUef4wnVsVnnsB8 https://s.click.taobao.com/t?e=m%3D2%2